Improved multi-way data collecting system

A data acquisition system and improved technology, applied in the direction of program control in measuring devices, instruments, sequence/logic controllers, etc., can solve the problems of inability to acquire signals, deterioration of signal quality, and low data acquisition rate, etc. To achieve the effect of improving the resolution and improving the signal-to-noise ratio

Inactive Publication Date: 2016-07-27
CHENGDU BAOMIHUA INFORMATION TECH
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Problems solved by technology

The earlier multi-channel time-division multiplexing data acquisition system can only realize the cyclic acquisition of multiple signals, but cannot realize the acquisition of signals of

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  • Improved multi-way data collecting system

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Embodiment Construction

[0014] The technical solutions of the present invention will be clearly and completely described below through embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

[0015] Such as figure 1 An improved multi-channel data acquisition system shown includes multiple sensors, multiple amplifiers, multiple filters, multiple analog switches, sample-and-hold modules, A / D converters, preprocessing units, industrial computers, and Each of the sensors is connected to a corresponding amplifier, the amplifier is connected to a filter, the filter is connected to a multi-channel analog switch, the multi-channel analog switch is connected to a sample and hold module, and the sample and hold module is connected t...

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Abstract

The invention relates to an improved multi-way data collecting system.The improved multi-way data collecting system is characterized in that multiple sensors, multiple amplifiers, multiple filters, a multi-way analog switch, a sampling and holding module, an A/D convertor, a preprocessing unit and an industrial personal computer are included; each sensor is connected with the corresponding amplifier, the amplifiers are connected with the filters, the filters are connected with the multi-way analog switch, the multi-way analog switch is connected with the sampling and holding module, the sampling and holding module is connected with the A/D converter, the A/D converter is connected with the preprocessing unit, and the preprocessing unit transmits data to the industrial personal computer.By adopting the multi-way synchronous data collecting system, signals of all channels at the same moment can be collected, and the data collecting velocity is high; the sampling and holding module is arranged, and therefore it is guaranteed that digital signals subjected to A/D conversion can correctly reflect original analog signals.

Description

Technical field [0001] The present invention relates to the technical field of data acquisition, in particular to an improved multi-channel data acquisition system. Background technique [0002] Data acquisition technology is widely used in communications, radar, aerospace, industry and other fields. With the rapid development of microelectronics technology and computer technology, the performance of the data acquisition system is continuously improving, and the function is continuously enhanced. In modern signal processing systems, in order to better analyze the system, it is often necessary to collect some relevant signals simultaneously while collecting key signals. The earlier multi-channel time-division multiplexing data acquisition system can only collect multiple signals cyclically, but cannot collect the signals of each channel at the same time. In addition, the data acquisition rate is not very high. Sensors and other devices usually generate noise, and the presence of...

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Application Information

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IPC IPC(8): G05B19/04G01D21/00
CPCG05B19/04G01D21/00
Inventor 梁庆欢陈长明杜跃武郭勇年
Owner CHENGDU BAOMIHUA INFORMATION TECH
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